Audi Q7 Owners & Service Manuals

Audi Q7: Subframe, Servicing

Subframe Front Hydraulic Bonded Rubber Bushing, Replacing

  Note

  • If a bonded rubber bushing is faulty, then the bonded rubber bushing on the opposite side must also be replaced. Refer to the Parts Catalog for the allocation.
  • Check the other bearing before switching out a defected bonded rubber bushing.
  • If cracks, oil leaks or other damage is visible, this bonded rubber bushing must also be replaced.

Special tools and workshop equipment required

  • Torque Wrench 1332 40-200Nm -VAG1332-
  • Hydraulic Press -VAS6178-
  • Pneumatic/Hydraulic Foot Pump -VAS 6179-
  • Bearing Installer - Wheel Hub/Bearing Kit -T10205A-
  • Bearing Installer - Wheel Hub/Bearing Kit - Spindle -T10205/8-1-
  • Bearing Installer - Wheel Hub/Bearing Kit - Nuts -T10205/8-2-
  • Assembly Tool -T40328-
  • Assembly Tool - Pipe -T40328/1-
  • Assembly Tool - Support Ring -T40328/3-
  • Assembly Tool - Support Ring -T40328/7-
  • Assembly Tool - Thrust Piece -T40328/10-
  • Assembly Tool - Support -T40328/13-

Removing

- Remove the wheels. Refer to → Chapter "Wheels and Tires".

- Exhaust system without separating point: remove the muffler. Refer to → Rep. Gr.26; Exhaust Pipes/Mufflers; Muffler, Removing and Installing.

- Exhaust system with separating point: remove the exhaust pipe. Refer to → Rep. Gr.26; Exhaust Pipes/Mufflers; Overview - Muffler.

- Versions with air suspension: perform the system bleeding. Refer to → Chapter "Air Suspension System, Filling and Bleeding".

- Remove the left and right spring. Refer to → Chapter "Spring, Removing and Installing".

- Remove the diagonal braces. Refer to → Body Exterior; Rep. Gr.66; Underbody Trim Panel.

- Pry out the anti-twist mechanism -2- in the area of the retaining tabs with a screwdriver from the bonded rubber bushing alternating from side to side.

- Pry out the plastic insert -1- from the bonded rubber bushing.

A42-10886

- Mark the installation position of the hydraulic bonded rubber bushing on the subframe -arrows-, for example with a felt-tip marker.

A42-10326

- If necessary, the support -arrow- with the small interior diameter must be removed from the Hydraulic Press -VAS6178- and the Assembly Tool - Support -T40328/13- for it must be installed.

A42-10109

- Arrange the special tools as shown.

A42-10844

1 - Bearing Installer - Wheel Hub/Bearing Kit - Spindle -T10205/8-1-

2 - Hydraulic Press -VAS 6178-

3 - Assembly Tool - Support Ring -T40328/3-

4 - Assembly Tool - Pipe -T40328/1-

5 - Assembly Tool - Support Ring -T40328/7- The conical side must face upward and the ribs must fit into the openings in the rubber bonded bushing.

6 - Assembly Tool - Thrust Piece -T40328/10-. The opening faces the rubber bonded bushing.

7 - Bearing Installer - Wheel Hub/Bearing Kit - Nuts -T10205/8-2-

  WARNING

Risk of injury from falling components!

Hold the Hydraulic Press -VAS6178- firmly while pressing out.

Installing

- Pry out the anti-twist mechanism -1- in the area of the retaining tabs -arrows- with a screwdriver from the bonded rubber bushing alternating from side to side.

- Pry out the plastic insert from the bonded rubber bushing.

A42-10887

- Arrange the special tools as shown.

A42-10845

1 - Bearing Installer - Wheel Hub/Bearing Kit - Spindle -T10205/8-1-

2 - Hydraulic Press -VAS 6178-

3 - Assembly Tool - Support Ring -T40328/3-

4 - Assembly Tool - Thrust Piece -T40328/8-. The ribs must engage in the bonded rubber bushing openings

5 - Bonded rubber bushing. Installation location. Refer to → Fig. "Subframe Hydraulic Front Bonded Rubber Bushing Installation Position".

6 - Assembly Tool - Thrust Piece -T40328/9-

7 - Bearing Installer - Wheel Hub/Bearing Kit - Nuts -T10205/8-2-

- Align the bonded rubber bushing with the markings made previously and push it in until the collar comes in contact with the bushing in the subframe without any gaps.

  Note

  • If necessary, tension and press over cylinder several times.
  • To prevent damage to the outer race, while pushing in, pay attention that the bonded rubber bushing is not tilted.
  • The ends of the rubber bead on the bonded rubber bushing must align with the markings -arrows- on the subframe.

  Note

Correct any paint damage on subframe with corrosion protection, primer and black top coat.

- Install the plastic insert and the anti-twist mechanism on the hydraulic bonded rubber bushing.

Further installation is the reverse order of removal.

A42-10326

Rear Bonded Rubber Bushing for Rear Final Drive, Removing and Installing

Special tools and workshop equipment required

  • Torque Wrench 1332 40-200Nm -VAG1332-
  • Hydraulic Press -VAS6178-
  • Pneumatic/Hydraulic Foot Pump -VAS6179-
  • Bearing Installer - Wheel Hub/Bearing Kit -T10205A-
  • Assembly Tool -T40328-, not illustrated

Removing

- Remove the driveshaft from the rear final drive and tie it up. Refer to → Rear Final Drive; Rep. Gr.39; Driveshaft; Driveshaft, Removing and Installing.

- Disconnect the left and right connector -arrow- from the rear vehicle level sensor and free up the wire.

A42-10774

Versions with Rear Axle Steering

- Release the safety catch -arrow-, push the retainer down and disconnect the connector from -3- from the Rear Axle Steering Control Module -J1019-.

- Disconnect the connector -2- on the Rear Axle Steering Control Module -J1019-.

- Free up the wiring harness from the subframe.

A42-10776

Continuation for All Vehicles

- Disconnect the connector -1- for the tire pressure monitoring antenna.

- Remove the left and right bolt -1- and free up the bracket -2- with the wires.

- Secure the subframe. Refer to → Chapter "Subframe, Securing".

- Lower the subframe a total of a maximum of 100 mm (3.93 in.).

A42-10777

- Pry out the anti-twist mechanism -2- in the area of the retaining tabs with a screwdriver from the bonded rubber bushing alternating from side to side.

- Pry out the plastic insert -1- from the bonded rubber bushing.

- Mark the installation position of the hydraulic bonded rubber bushing on the subframe -arrows-, for example with a felt-tip marker.

A42-10890

- If necessary, the support -arrow- with the small interior diameter must be removed from the Hydraulic Press -VAS6178- and the Assembly Tool - Support -T40328/13- for it must be installed.

A42-10109

- Arrange the special tools as shown.

A42-10846

1 - Bearing Installer - Wheel Hub/Bearing Kit - Spindle -T10205/8-1-

2 - Hydraulic Press -VAS6178-

3 - Assembly Tool - Support Ring -T40328/3-

4 - Assembly Tool - Pipe -T40328/1-

5 - Assembly Tool - Support Ring -T40328/2-. The conical side must face upward and the ribs must fit into the openings in the rubber bonded bushing

6 - Assembly Tool - Thrust Piece -T40328/4-

7 - Bearing Installer - Wheel Hub/Bearing Kit - Nuts -T10205/8-2-

  WARNING

Risk of injury from falling components!

  • Hold the Hydraulic Press -VAS6178- firmly while pressing out.
  • When pressing off, the bonded rubber bushing loosens abruptly from the subframe. Use, for example, the Engine and Gearbox Jack -VAS6931- to secure.

Installing

- Pry out the anti-twist mechanism -1- in the area of the retaining tabs -arrows- with a screwdriver from the bonded rubber bushing alternating from side to side.

- Pry out the plastic insert from the bonded rubber bushing.

A42-10887

- Arrange the special tools as shown.

A42-10845

1 - Bearing Installer - Wheel Hub/Bearing Kit - Spindle -T10205/8-1-

2 - Hydraulic Press -VAS 6178-

3 - Assembly Tool - Thrust Piece -T40328/8-. The ribs must engage in the bonded rubber bushing openings

4 - Bonded rubber bushing. Installation location. Refer to → Fig. "Subframe Hydraulic Front Bonded Rubber Bushing Installation Position".

5 - Assembly Tool - Thrust Piece -T40328/6-

6 - Bearing Installer - Wheel Hub/Bearing Kit - Nuts -T10205/8-2-

- Align the bonded rubber bushing with the markings made previously and push it in until the collar comes in contact with the bushing in the subframe without any gaps.

  Note

  • If necessary, tension and press over cylinder several times.
  • To prevent damage to the outer race, while pushing in, pay attention that the bonded rubber bushing is not tilted.
  • The ends of the rubber bead on the bonded rubber bushing must align with the markings -arrows- on the subframe.

  Note

Correct any paint damage on subframe with corrosion protection, primer and black top coat.

- Install the plastic insert and the anti-twist mechanism on the hydraulic bonded rubber bushing.

Further installation is the reverse order of removal.

A42-10890

    READ NEXT:

     Stabilizer Bar

    Overview - Stabilizer Bar 1 - Stabilizer Bar Removing and installing. Refer to → Chapter "Stabilizer Bar, Removing and Installing". With rubber bushing The bonded rubber bushing

     Overview - Transverse Link

    Upper Transverse Link 1 - Wheel Bearing Housing 2 - Bolt 70 Nm +180º Replace after removing Must be tightened in the curb weight position. Refer to → Chapter

     Upper Transverse Link, Removing and Installing

    Upper Transverse Link, Removing and Installing Special tools and workshop equipment required Torque Wrench 1332 40-200Nm -VAG1332- Engine and Gearbox Jack -VAS6931- Engine/Gearbox Jack Adapter -

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    1 - Bolt 40 Nm Replace the bolt if it was removed because of an accident when the seat belt was buckled. 2 - Automatic Belt Retractor Driver side: with Driver Side Third Row Seat Belt Tensioner Igniter -N668- Front passenger side: with Front Passenger Side Third Row Se

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